Pump.



M was W. S. DOBIE.

, PUMP. APPLICATION FILED MAILZB, 1908.

f 922,269. Patented May 18,1909.

W f f j f; #2

Y I 3 v 2 4' T if ii w. s. new, I,

PUMP.

APPLICATION FILED HAL, 1908.

PatentedMay 18, 1909.

a SHEETS-SHEET 2.

f ZZ4 W. S. DOBIB.

PUMP. APPLICATION FILED MAR. 28, 1908.

Patented May 18, 1909.

a. 5 7- 0 Pl 6 3 7 l 7/ W// j w w w warmms I unirnn srnrns r arr.

WILLIAM S. DOBIE, OF SAN ANTONIO, TEXAS, ASSIGNOR OF ONE-THIRD TO E. JACKSON MCGOLDRIOK AND TEXAS.

ON E-THIRD TO BENJAMIN B. MCGOLDRIGK, BOTH OF SAN ANTONIO,

PUMP.

Specification of Letters Patent.

Patented May 18, 1909.

To all whom it may concern:

Be it known that I, WILLIAM S. DOBIE, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Pump, of which the following is a specification.

This invention relates to that class of pumps for raising liquid from wells in which liquid is caused to enter the receptacle by reason of the condensation of steam therein and is expelled from the receptacle by the pressure of steam upon the liquid.

The invention has for its object to provide a pump of this character by means of which the discharge of liquid from one of theliquid receptacles Will cause the discharge of liquid from the other.

The invention further has for its object to provide a pump of this character which will be simple in construction, positive in action and; economical in steam.

The invention has further for its object to provide a pump of this character in which the number of'parts are reduced and which will be of such a simple construction that it may be readily set up and economically used.

The invention has for its object to provide a steam vacuum pump for raising liquids constructed and arranged as hereinafter set forth and claimed.

Referring to the accompanying drawings Figure 1v is a view in elevation of a steam vacuum pump constructed in accordance with this invention. Fig. 2 is a rear view thereof, partly in section, showing the valve chambers. Fig. 3 is a plan view in horizontal section on the line mc of Fig. 1. Fig. 4 is an enlarged detail view, showing the valve mechanism for alternately admitting steam to the two cylinders. Fig. 5 is a detail view in vertical section of a steam tappet connected to the steam chest. Fig. 6 is a detail view in vertical section showing the connection of the steam chest and the cylinder. Fig. 7 is a detail view in vertical cross section of the steam distributing valve chamber. Fig. 8 is av plan view. in horizontal section, similar to Fig. 3, showing a modified form of con-' struction of the float valve chamber and float valve. Fig. 9 is an enlarged detail viewon the line 99 of Fig. 8, showing a modification of the valve -mechan1sm and float valve and its valve chamber. The pump constructed in accordance with this invention consists of two liquid receptacles, as here shown, comprising cylinders 1 and 2 mounted upon a valve casing 3 provided with a liquid chambers 4, 5 and 6, there being two sets of these chambers divided by a partition'5; the cylinders land 2 connect ing, respectively, with its chamber 5 by means of an opening 7 Connecting-with the lowest chamber 6 is an induction pipe 8, and with the uppermost chamber 4 a discharge pipe 9. The upper ends of the cylinders 1 and 2 are each provided with a gland 10 secured thereto in any suitable manner, and provided with a depending portion 11 proj ecting into the upper end of each of the cylinders 1 and 2, and having perforations 12 for spreading steam into said cylinders.

13 is a steam chest connecting with the cylinders 1 and 2 by means of ports 14, and with the chamber 17 of a valve chest 18 by means of ports and 16. Located in said valve chest 18 is a reciprocating piston valve 19 carrying a slide valve 20 which moves over and is adapted to alternately close the ports 15 and 16. Adjacent to said valve chest 18 are located steam tappets 21, each provided with a chamber 22 communicating by means of a port 23 with a pipe 24 connecting with the chamber 17 and provided with an outlet port 25 for the escape of steam from the chamber 22. Located in the chamber 22 is a piston valve 26 adapted to close and unclose the ports 23 and 25, and mounted on the piston rod 27 having its lower end pivotally connected to the rocking lever 28 on the other end of which is pivotally connected a rod 29 extending down through a bushing 30 in the valve casing 31, containing-a ball valve 32, mounted on the lower end of the rod 29. The valve casing 31 is provided with an opening 34 which opens into the chamber 5. The piston valve 19 is operated to reciprocate to and fro in the valve chest 18 by means of a lever-35 having its upper end mounted on the end of a shaft 36 projecting from the top of the valve chest, and having mounted on its outer end an arm 38 pivotally connected to a rod 39 and connected with any suitable means for operating said piston valve. The lowest valve chamber 6 is provided in its top with inlet ports 40 normally closed by means of valves 41 mounted to move upward on rods 41 suitably supported and having coiled springs-41 adapted to hold said valves 41 in seated position, and to return them to seated position when raised. The top of the i valve chamber 5 is provided with outlet ports 43 closed by upwardly moving valves 44 mounted on rods 45 secured to the top of the chamber 4 by means of nuts 46, and having springs 47 mounted on said rods 45 for yieldingly holding said valves44 inclosed position. The ball valve chamber 31 is closed in any suitable manner by a movable cover 48 and access is had to the valve chamber 5 through an opening 49 in the valve casing 3 and closed by any suitable movable cover, not shown.

Access is had to the interior of the rece tacles 1 and 2 by means of a door 50, suitab y detachably secured thereto. Air is admitted to the cylinders 1 and 2by means of cocks 51 located adjacent to the upper end of said cylinders. Steam is admitted to the chamber 17 in the valve chest by means of a pi e 52 communicating with said chamber, ass own in Fig. 7. Each of the cylinders 1 and 2 is provided with a spray consisting of a spray pi e 53 having its upper end located in the cy inder and extending upward and provided at its upper end with a spray nozzle 54, said spray plpe 53 projecting through the side of said cylinders and extending downwardly and connecting with the valve chamher 5.

54 is acheck valve located in each of said spray ipes 53 and acting to prevent the return 0 steam or liquid from the cylinder. 7 The operation of the pump is as follows The water cylinder 1 is primed by taking off the cover 50. The cover 50' being closed, steam is admitted to chamber 17 and valve chest 18. The lever 38 is then pulled to the right which causes the port 16 to be unclosed, the valve 20 moving away from the same and closing the port 15. Steam is thereby admitted to the cylinder 2. The lever 38 is then 1 moved to the left, changing the position of the valve 20 from port 15 to port 16 and admitting steam to the cylinder 1. The admission of steam to the cylinder 1 forces the liquid in cylinder 1 downward and through the opening 7 into chamber 5, forcing up the valves 44, and admitting the liquid into chamber 4. It is then carried up and discharged through the discharge pipe 9. The liquid thus forced downward and up through discharge pipe 9 at the same time forces water through the spray pipe 53 into the liquid receptacle 2, thus causing the steam therein to quickly condense and forming a vacuum which draws the liquid up from the left hand valve chamber 6. into the left hand valve chamber 5 and up through its top valve 44 into the chamber 4, and thence up into the cylinder 2. When the water is forced out of the cylinder 1, the ball float valve 32 is lowered and by that movement opens the steam tappet 31 above the cylinder 1, thus releasing the steam back of the valve piston 19, 'an

from port 16 to port causing the slide valve 20 by the action of the valvepiston19 to change its position on the port 16 to the port 15, therebyadmitting steam to the chamber 2. H 7 7 7 It will thus be seen that by means of this construction and operation, as hereinbefore set forth, the piston valve 19 can be reciprocated and slide valve 20 moved alternately 15, thereby alternately admitting steam to the chambers 1 and 2 as the water is discharged-from one, and is admitted to the other. V p

By means of a pump constructed as hereinbefore set forth, the discharge of the water from one cylinder will beproducing a vacuum in the other, cause the liquid to be discharged from the second cylinder, andthereby the alternating movement of the reciprocating valve and sliding valve the li uidwill' be alternately dischar ed from 'eadh cylinder, and the steam wil be alternately condensed in each cylinder and will produce a vacuum causing an alternate discharge of li uid from each cylinder. g r

11 Figs. 8 and9 are shown modifications of the float valve and chamber, and the mechanism of the valves. I V 55 indicates the-lowest liquid chamber, 56 the middle liquid chamber, and 57 the highest liquid chamber, located in the valve cas' ing 58, and being practically the same as liquid chambers 6, 5 and 4. The casin 58 is also formed with a modified form of oat valve chamber 59 shaped to conform to the angular float'valve 60, located therein, and connected to the rod 29 extending through bushing 30. The float valve chamber 59 communicates with the middle chamber56 by means of vertical slots 61. The function and operation of float valve 60 is the sameas ball valve 32. 'i The top of chamber 55 is provided with inlet ports 62 normally closed by valves 63 mounted on the lower end of rods 64, each having its 11 per end extending through a brace guide bar 65 mounted across outlet orts 66 in the top of chamber 56. The outet orts 66 are normally closed by valves 67, eac mounted to move upward on a tubular rod 68, having its upper end secured in the top of chamber 57- by a nut 69. The up er end of rod 64 projects into the tubular ro 68, and is adapted to move up and down therein. The valves 63, and 67 are held in closed osition, and controlled in their movements y s rings 7 O, mounted on the rods 64 and 68. T e operation of the valves is similar to that of the valves 41 and 44 shown in Fig. 2.

\Vhat is claimed is p In a vacuum steam pum a pair of liquid receptacles, a steam chest aving ports connecting with said receptacles, a reciprocating valve alternately opening and closing said ports, steam t'appets connected with the steam chamber of said reciprocating valve, two sets of valve chambers, each consisting of an upper, lower and intermediate chamber, an induction pipe opening into the lower chamber, an eduction pipe connecting with the upper chamber, inlet valves between the lower and intermediate chamber, outlet valves between the intermediate and upper chamber, the intermediate chamber openin into one of the liquid receptacles, a float ball valve located in a chamber opening into the intermediate chamber, and having an operative connection with a steam tappet, and a spray located in each liquid receptacle and having a pipe connected with the intermediate valve chamber which communicates with the other liquid receptacle.

In testimony that I claim the foregoing as my own, I have hereto afliXed my signature in the presence of two witnesses.

WILLIAM S. DOBIE.

Witnesses:

LUTHER SARGENT, LOUIS WOLF. 

